CN209641185U - A kind of floatage-type teaching aid device with density measure function - Google Patents
A kind of floatage-type teaching aid device with density measure function Download PDFInfo
- Publication number
- CN209641185U CN209641185U CN201821959507.XU CN201821959507U CN209641185U CN 209641185 U CN209641185 U CN 209641185U CN 201821959507 U CN201821959507 U CN 201821959507U CN 209641185 U CN209641185 U CN 209641185U
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- Prior art keywords
- floatage
- runner
- teaching aid
- lantern ring
- elevating lever
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Abstract
The utility model relates to teaching aid technical fields, and in particular to a kind of floatage-type teaching aid device with density measure function；Including pedestal, liquid-collecting box, water drum, dynamometer and regulating device；The base right side is equipped with strut, the pedestal upper surface is equipped with liquid-collecting box, the liquid-collecting box bottom is equipped with weighing apparatus, water drum is equipped with above the weighing apparatus, the water drum is fixedly connected by connecting rod with the strut, strut upper end level is equipped with cross bar, and the cross bar end is equipped with regulating device, and the regulating device includes elevating lever, lantern ring, runner and handle；The cross bar left end is equipped with lantern ring, elevating lever is socketed in the lantern ring, runner is equipped on the right side of the lantern ring, handle is equipped in the middle part of the runner, the elevating lever is connected with the dynamometer by draught line, the dynamometer lower end be equipped with hook, can by regulating device slowly by object under test into the water, it avoids because self reason increases error, so as to effectively improve the accuracy of test.
Description
Technical field
The utility model relates to teaching aid technical fields, and in particular to a kind of floatage-type religion with density measure function
Has device.
Background technique
Archimedes principle is called Archimedes' principle, it may be assumed that soak object in a liquid by upward buoyancy, buoyancy
Size is equal to gravity suffered by the liquid that object arranges.It is to be found by ancient Greek scholar Archimedes, therefore named
For Archimedes principle.The principle is applicable not only to liquid, is also applied for gas.The size of buoyancy indicates with calculation formula, i.e. F
Floating=G row=ρ liquid (gas) gV row.It is the important content in one of basic principle in mechanics and middle school physical curriculum.
When teacher is to professor's student principle in secondary curriculum, it should cooperate simple confirmatory experiment so that student can be more
Intuitively profoundly know from experience.Existing Archimedes principle confirmatory experiment usually all includes two spring scales and overflow device and is connect
Water installations, although the experiment can intuitively show Archimedes principle, because to use two spring scales, overflow mechanisms and hold
The container of water receiving, experimental apparatus is more, complicated for operation, and complex steps waste time.
Power is referred to object in fluid (including liquids and gases), and each surface (is closed by the difference of fluid (liquids and gases) pressure
Power).B.C. 245 years, Archimedes had found law of buoyancy.The definition of buoyancy be F it is floating=(i.e. buoyancy of object is equal to G row
Object arranges the gravity of liquid when sinking), calculating can derive that formula F floats=ρ liquid gV row's (ρ liquid: fluid density, unit with it
Kilograms per cubic meter；In rough calculation, g can take 10N/kg, units Newtons by g: gravity and the ratio g=9.8N/kg of quality；V
Row: the volume of liquid, unit cubic meter are arranged).The buoyancy of liquid is also applied for gas.
Publication number CN201621481544.5 disclose it is a kind of verify Archimedes principle experiment teaching aid and its use
Method, the utility model disclose a kind of experiment teaching aid and its application method for verifying Archimedes principle, comprising: one has
The container of containing mark label, 1-5 quality is known and different polyethylene floating ball and a polyethylene float cup, described floating
Ball includes foot piece, shell and inner core.In use, recording initial volume V for the liquid that density is ρ is injected in container0, it is added
Know that the floating ball of quality, floating ball can be swum on liquid, therefore it is to be equal to its own gravity G ball that the buoyancy F suffered by it is floating,
And be added floating ball after can directly read liquid volume be V, arrange volume V row can be calculated from container scale reading difference and
Know i.e. V-V0, so G row-ρ gV is arranged, can verify that F floats-G ball-G row, i.e. Archimedes principle by comparing.The utility model
Structure is simple, easy to use, and variation multiplicity can investigate the influence of density and volume to buoyancy, and can excite student's respectively
Learning interest deepens the understanding to knowledge.
Existing test teaching aid step in terms of density measure is relatively complicated, and the volume and object under test weight for arranging water are closed
It is not intuitive, and is usually to pass through to be manually placed into when being put into object, speed is not easy to control, is easy to spill in water, influences to test
As a result.
Utility model content
Technical solution
A kind of floatage-type teaching aid device with density measure function, a kind of floatage-type with density measure function
Teaching aid device includes pedestal, liquid-collecting box, water drum, dynamometer and regulating device；The base right side is equipped with strut, on the pedestal
End face is equipped with liquid-collecting box, and the liquid-collecting box bottom is equipped with weighing apparatus, is equipped with water drum above the weighing apparatus, the water drum passes through company
Extension bar is fixedly connected with the strut, and strut upper end level is equipped with cross bar, and the cross bar end is equipped with regulating device, described
Regulating device includes elevating lever, lantern ring, runner and handle；The cross bar left end is equipped with lantern ring, is socketed with lifting in the lantern ring
Bar, the lantern ring right side are equipped with runner, handle are equipped in the middle part of the runner, and the elevating lever and the dynamometer pass through draught line
It is connected, the dynamometer lower end is equipped with hook.
Preferably, the elevating lever side is equipped with positive stop strip, offers on the inside of the lantern ring and matches with the positive stop strip
Limiting slot.
Preferably, the runner is gear structure, is equipped with the sawtooth being meshed with the runner on the right side of the elevating lever.
Preferably, the dynamometry is calculated as weight beam.
Preferably, the weighing apparatus is electronic weigher, and the pedestal is equipped with the display to match with the weighing apparatus
Screen, the pedestal is interior to be equipped with power supply, and the power supply and the display screen, weighing apparatus pass through conducting wire and be electrically connected.
Preferably, the runner is connected by fixed plate with the cross bar.
Due to using above-mentioned technical solution, the beneficial effects of the utility model are:
A kind of floatage-type teaching aid device with density measure function provided by the utility model, can be slow by regulating device
Slowly into the water by object under test, it avoids because self reason increases error, so as to effectively improve the accuracy of test.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the side sectional view of the utility model；
Fig. 3 is the regulating device enlarged drawing of the utility model.
Wherein:
1- pedestal, 2- liquid-collecting box, 3- water drum, 4- object under test, 5- hook, 6- dynamometer, 7- lantern ring, 8- fixed plate, 9-
Elevating lever, 10- strut, 11- cross bar, 12- runner, 13- connecting rod, 14- handle.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Type embodiment, the technical scheme in the utility model embodiment is clearly and completely described.Reality based on the utility model
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to
In the range of the utility model protection.
A kind of floatage-type teaching aid device with density measure function, a kind of floatage-type teaching aid with density measure function
Device includes pedestal 1, liquid-collecting box 2, water drum 3, dynamometer 6 and regulating device；Strut 10,1 upper surface of pedestal are equipped on the right side of pedestal 1
Equipped with liquid-collecting box 2,2 bottom of liquid-collecting box is equipped with weighing apparatus, and water drum 3 is equipped with above weighing apparatus, and water drum 3 passes through connecting rod 13 and strut
10 are fixedly connected, and 10 upper end level of strut is equipped with cross bar 11, and 11 end of cross bar is equipped with regulating device, and regulating device includes elevating lever
9, lantern ring 7, runner 12 and handle 14；11 left end of cross bar is equipped with lantern ring 7, is socketed with elevating lever 9 in lantern ring 7, is equipped on the right side of lantern ring 7
Runner 12 is equipped with handle 14 in the middle part of runner 12, and elevating lever 9 is connected with dynamometer 6 by draught line, and 6 lower end of dynamometer is equipped with
Hook 5.
Specifically, 9 side of elevating lever is equipped with positive stop strip, the limiting slot to match with positive stop strip is offered on the inside of lantern ring 7；Turn
Wheel 12 is gear structure, is equipped with the sawtooth being meshed with runner 12 on the right side of elevating lever 9；Dynamometer 6 is weight beam 6；Weighing
Device is electronic weigher, and pedestal 1 is equipped with the display screen to match with weighing apparatus, power supply, power supply and display are equipped in pedestal 1
Screen, weighing apparatus are electrically connected by conducting wire；Runner 12 is connected by fixed plate 8 with cross bar 11.
The utility model provides a kind of floatage-type teaching aid device with density measure function, and staff is in needs pair
When object under test 4 carries out density measure, first object under test 4 is hung on hook 5, being rotated further by handle 14 declines elevating lever 9, allows
Object under test 4 is slowly immersed in the water, and after object under test 4 is completely immersed in water, takes the ratio between 6 registration of dynamometer and display screen registration
Add one, then obtains the ratio between the density of object under test 4 Yu water.
Above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；Although referring to aforementioned reality
Example is applied the utility model is described in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
It modifies or replaces, the spirit and model of various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (6)
1. a kind of floatage-type teaching aid device with density measure function, a kind of floatage-type religion with density measure function
Having device includes pedestal, liquid-collecting box, water drum, dynamometer and regulating device；It is characterized by: the base right side is equipped with strut,
The pedestal upper surface is equipped with liquid-collecting box, and the liquid-collecting box bottom is equipped with weighing apparatus, and water drum is equipped with above the weighing apparatus, described
Water drum is fixedly connected by connecting rod with the strut, and strut upper end level is equipped with cross bar, and the cross bar end, which is equipped with, adjusts
Regulating device, the regulating device include elevating lever, lantern ring, runner and handle；The cross bar left end is equipped with lantern ring, in the lantern ring
It is socketed with elevating lever, runner is equipped on the right side of the lantern ring, is equipped with handle, the elevating lever and the dynamometer in the middle part of the runner
It is connected by draught line, the dynamometer lower end is equipped with hook.
2. a kind of floatage-type teaching aid device with density measure function according to claim 1, it is characterised in that: described
Elevating lever side is equipped with positive stop strip, offers the limiting slot to match with the positive stop strip on the inside of the lantern ring.
3. a kind of floatage-type teaching aid device with density measure function according to claim 1, it is characterised in that: described
Runner is gear structure, and the sawtooth being meshed with the runner is equipped on the right side of the elevating lever.
4. a kind of floatage-type teaching aid device with density measure function according to claim 1, it is characterised in that: described
Dynamometry is calculated as weight beam.
5. a kind of floatage-type teaching aid device with density measure function according to claim 1, it is characterised in that: described
Weighing apparatus is electronic weigher, and the pedestal is equipped with the display screen to match with the weighing apparatus, is equipped with electricity in the pedestal
Source, the power supply and the display screen, weighing apparatus are electrically connected by conducting wire.
6. a kind of floatage-type teaching aid device with density measure function according to claim 1, it is characterised in that: described
Runner is connected by fixed plate with the cross bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821959507.XU CN209641185U (en) | 2018-11-27 | 2018-11-27 | A kind of floatage-type teaching aid device with density measure function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821959507.XU CN209641185U (en) | 2018-11-27 | 2018-11-27 | A kind of floatage-type teaching aid device with density measure function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209641185U true CN209641185U (en) | 2019-11-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821959507.XU Expired - Fee Related CN209641185U (en) | 2018-11-27 | 2018-11-27 | A kind of floatage-type teaching aid device with density measure function |
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| CN (1) | CN209641185U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111487159A (en) * | 2020-05-22 | 2020-08-04 | 安徽师范大学 | Density measuring device based on communication technology of Internet of things |
-
2018
- 2018-11-27 CN CN201821959507.XU patent/CN209641185U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111487159A (en) * | 2020-05-22 | 2020-08-04 | 安徽师范大学 | Density measuring device based on communication technology of Internet of things |
| CN111487159B (en) * | 2020-05-22 | 2020-12-25 | 安徽师范大学 | Density measuring device based on communication technology of Internet of things |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191115 Termination date: 20201127 |
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| CF01 | Termination of patent right due to non-payment of annual fee |